单项选择题
A.<90g/L B.<40g/L C.<50g/L D.<60g/L E.<70g/L
A.20~30天 B.25~32天 C.28～40天 D.30~35天 E.32～38天
A.MCV90fL，MCH32pg，MCHC33% B.MCV110fL，MCH38pg，MCHC34% C.MCV70fL，MCH24pg，MCHC29% D.MCV66fL，MCH23pg，MCHC32% E.MCV80fL，MCH24pg，MCHC28%